sparso 'bhavat tato vayus
tvak sparsasya ca saṅgrahah
nabhasah-from ether; sabda-tanmatrat-which evolves from the subtle element sound; kala-gatya-under the impulse of time; vikurvatah-undergoing transformation; sparsah-the subtle element touch; abhavat-evolved; tatah-thence; vayuh-air; tvak-the sense of touch; sparsasya-of touch; ca-and; saṅgrahah-perception.